5. The number 899 is:
(a) a number with 5 factors
(b) a number with 4 factors
(c) a number with more than 4 factors
(d) a perfect cube

6. The least number to be added to 3545 so that 65 divides the result exactly is:
(a) 50
(b) 40
(c) 30
(d) 20

7. Find the number which when multiplied by 13 is increased by 180:
(a) 20
(b) 15
(c) 12
(d) 5

8. Find the number of divisors of 10800.
(a) 57
(b) 60
(c) 72
(d) 62

9. The sum of the digits in a two-digit number is 5. If 9 is subtracted from the number, the result is the number with the digits reversed. The number is:
(a) 23
(b) 24
(c) 41
(d) 32

10. Three consecutive numbers such that twice the first, 3 times the second and 4 times the third together make 182. The numbers in question are:
(a) 18, 22 and 23
(b) 18, 19 and 20
(c) 19, 20 and 21
(d) 20, 21 and 22